I've bought some Acrylic paints to use for the first time (I normally use watercolours) and should have them in a few days. What are the differences you've experienced in using them compared to watercolours or oils?
Acrylic dries
very fast. Once you lay something down, you better be happy with it because there's no going back unless you paint over the entire canvas. That being said acrylic is also extremely versatile in what you can do with it, how safe of a substance it is, and most of all it's price. People often compare acrylic to oil by saying it's a beginner's paint while oil is an intermediate painter's groove, which is completely false. They are simply two different mediums, I started with oil and personally find it a million times easier that acrylic. I also know a lot of artists that can obtain textures with acrylic that you can't pull of with oil, despite oil being the go-to paint for impasto.
Once you get in the groove of painting with acrylic and are enjoying it, I recommend that you try out gouache paints. It's sort of a love child between acrylic and watercolor. I don't recommend jumping straight from nothing to watercolor or even acrylic to watercolor unless you're really determined to learn, because it's an unforgiving bitch.
Edit: Oh and oil is a nightmare to clean up after.
A NIGHTMARE.